How do I change the cursor used when the mouse pointer is over a QwtPlot?

Question

By default, the cursor changes to a crosshair when it’s within a QwtPlot on the screen. Calling

setCursor(Qt::ArrowCursor);

from within my QwtPlot subclass doesn’t have any effect. How can I change this cursor to something other than a crosshair?

Answer 1

You need to call setCursor on the plot’s canvas. From a QwtPlot subclass, for example,

canvas()->setCursor(Qt::ArrowCursor);